NCP4671Linear Voltage Regulator, Ultra LDO, Dual Rail, 400 mA | Power Management (PMIC) | 6 | Obsolete | The NCP4671 is a CMOS Dual Supply Rail Linear Voltage Regulator designed to provide very low output voltages. The Dual Rail architecture, which separates the power for the LDO control circuitry (provided via the Vbias pin) from the main power path (Vin) offers ultra-low dropout performance, allowing the device to operate from input voltages down to 0.9 V and to generate a fixed high accuracy output voltage as low as 0.6 V. The NCP4671 offers excellent transient response with very low quiescent currents. The family is available in a variety of packages: SC-70, SOT23 and a small, ultra thin 1.2 x 1.2 x 0.4mm XDFN, and comes with a standard enable or an enable plus auto-discharge configuration. Contact your local sales representative for specific package, voltage and enable combinations. |
NCP4680Linear Voltage Regulator, LDO, Low Noise, 150 mA | PMIC | 5 | Obsolete | The NCP4680 is a CMOS Linear Voltage Regulator with 150 mA output current capability. The device is available in a tiny 0.8x0.8 mm XDFN, and has high output voltage accuracy, low supply current and high ripple rejection. The NCP4680 is easy to use and includes output current fold-back protection. A Chip Enable function is included to save power by lowering supply current. The line and load transient responses are very good, making this regulator ideal for use as a power supply for communication equipment. |
NCP4681Linear Voltage Regulator, LDO, Ultra Low Iq, 150 mA | PMIC | 4 | Obsolete | The NCP4681 and NCP4684 are CMOS Linear voltage regulators with 150 mA output current capability and ultra low supply currents (1 uA typ.) The devices are easy to use and include output current protection and a fully integrated soft-start circuit to minimize inrush current and to ensure no output voltage overshoot. The NCP4681 includes an ENABLE function to reduce supply current by using a Standby mode, while the NCP4684 excludes the ENABLE pin to avoid the associated pull down current, thereby offering the lowest possible current consumption for battery powered applications in ACTIVE mode. The devices are available in the ultra small 0.8x0.8mm XDFN as well as the SC-70 and SOT23-5 packages. |
NCP4682Linear Voltage Regulator, LDO, Ultra Low Iq, 150 mA | PMIC | 9 | Obsolete | The NCP4682 and NCP4685 are CMOS Low Dropout Linear Voltage Regulators with 150 mA output current capability. The devices have high output voltage accuracy, a 1 µA (typ.) ultra low supply current and high ripple rejection. Current fold-back protection is integrated in the devices to protect against over current and short current conditions. A Chip Enable (NCP4682 only) function is included to save power by further lowering supply current, which is advantageous for battery powered applications. The NCP4685 is optimized for the lowest quiescent current possible in applications where the device is always on. |
NCP4683Voltage Regulator, LDO, 300 mA | PMIC | 7 | Obsolete | The NCP4683 is a CMOS Linear Voltage Regulator with 300 mA output current capability. The device has high output voltage accuracy, low supply current and high ripple rejection. The NCP4683 is easy to use, with output current fold-back protection circuit included. A Chip Enable function is included to save power by lowering supply current. The line and load transient responses are very good, thus this regulator is suitable for use as a power supply for communication equipment. |
NCP4686Linear Voltage Regulator, LDO, Low Voltage, 400 mA | Voltage Regulators - Linear, Low Drop Out (LDO) Regulators | 2 | Obsolete | The NCP4686 is a 400mA, low voltage, high accuracy CMOS Low Drop Out Linear Voltage Regulator. Capable of operating from an input voltage as low as 1.0V, the device can generate output voltages as low as 0.7V with an output voltage accuracy of ±0.8%. The device features an enable pin allowing the regulator to be switched to standby mode and thereby reducing supply current to less than 0.1µA. The NCP4686 is available in a SC88-A, SOT23-5 and the tiny 1.2x1.2mm XDFN package, and comes in output voltage steps of 100mA between 0.7V and 1.8V. It is available with or without an auto-discharge function on the output.For specific package,voltage and discharge combinations, please contact your local sales office. |
NCP4687Linear Voltage Regulator, LDO, 500 mA | PMIC | 7 | Obsolete | The NCP4687 is a CMOS 500 mA LDO linear voltage regulator with high output voltage accuracy which features a high ripple rejection, low supply current with low dropout and chip enable with built in low RDS(on)NMOS transistor for fast output capacitor discharging as option. The device is composed of the voltage reference unit, error amplifier, resistor divider for output voltage sensing or precise output voltage setting. The current limit and thermal shutdown makes the device very suitable for industrial applications and portable communication equipments. |
NCP4688LDO Regulator, 150 mA, Low Dropout, High PSRR, Low Noise | PMIC | 6 | Obsolete | The NCP4688 is a CMOS 150mA LDO linear voltage regulator with high output voltage accuracy which features a low noise output voltage and high ripple rejection. The low level of output noise 10uVrms typically is kept at any output voltage. The very common SOT23-5 package and small uDFN 1x1 package are suitable for industrial applications, portable communication equipments and RF modules. |
NCP4894Audio Power Amplifier, 1.8 Watt, with Selectable Shutdown | Linear | 2 | Obsolete | The NCP4894 is a differential audio power amplifier designed for portable communication device applications. The excellent audio characteristics of the NCP4894 are a guarantee of high quality sound, for example, in mobile phone applications. With less than 0.01% distortion (THD+N), the NCP4894 is capable of delivering 1.0W of continuous average power to an 8.0Ω load from a 5.0V power and still 250mW from 2.6V.The NCP4894 provides high quality audio while requiring few external components and minimal power consumption. It features a low-power consumption shutdown mode.To be flexible, shutdown may be enabled by either a logic high or low depending on the voltage applied on the SD MODE pin.The NCP4894 contains circuitry to prevent from "pop and click" noise that would otherwise occur during turn-on and turn-off transitions.For maximum flexibility, the NCP4894 provides an externally controlled gain (with resistors), as well as an externally controlled turn-on time (with bypass capacitor).Due to its excellent PSRR, it can be directly connected to the battery, saving the use of an LDO.This device is available in the 9-Pin Flip-Chip CSP, Micro10 and DFN 3x3 mm package. |
NCP500LDO Regulator, 150 mA, Low Dropout, Low Noise | PMIC | 14 | Active | The NCP500 Low Dropout (LDO) Linear Voltage Regulator is designed for portable battery powered applications which require low noise operation, fast enable response time, and low dropout. The device achieves its low noise performance without the need of an external noise bypass capacitor. Each device contains a voltage reference unit, an error amplifier, a PMOS power transistor, and resistors for setting output voltage, and current limit and temperature limit protection circuits.The NCP500 LDO Linear Voltage Regulator has been designed to be used with low cost ceramic capacitors and requires a minimum output capacitor of 1.0 mF. Standard voltage versions are 1.8, 2.5, 2.7, 2.8, 3.0, 3.3, and 5.0 V. |